How to set up a dynamic screen saver?

The setting method is as follows:

Tool: iPhone 8

Operating system: iOS 14.4. 1.

Program: Tik Tok v9.02 1

1. Find your favorite video on Tik Tok and click the Save icon.

2. Click the "dynamic wallpaper" icon to convert the video into dynamic wallpaper, which will be automatically saved in the mobile phone photo album.

3. Open the settings of iPhone and click "Wallpaper".

4. Click "Select a new wallpaper".

5. Select the dynamic wallpaper just saved in the mobile phone photo album, and then click "Settings".

6. Dynamic wallpaper can be set as lock screen wallpaper or as home screen wallpaper.